Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rc5 win in 3 half-moves
4 Re7 win in 3 half-moves
5 Re8 win in 3 half-moves
6 Ka7 draw
7 Kb7 draw
8 Kc7 draw
9 Kc8 draw
10 Rd5 draw
11 Re4 draw
12 Re6 draw
13 Rh5 draw
14 Ka8 loss in 4 half-moves
15 Re1 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rg5 loss in 2 half-moves